Did you "cook" the sauce? What I mean is did you heat it to a cooking temp b4 you tasted it? I've been making my own bbq sauce for about 35 years, and it was after about 30 years that I realized the mix tasted different when "cooked". So now I always cook the mix b4 I call it ready to sauce with. Granted most of my experience is for grilling purposes, but sauce is sauce, man!
Bo Compton in Mesa, AZ, KCBS CBJ
Weber Ranch Kettle, BDS Mega, OTS, Weber Platinum
WSM w/Stacker from ProQ
LFSA RED Thermapen,
And 1 2010 Victor brand Hot Dog Cart